Found in the December 1974 issue of Radio Electronics, this circuit is similar to the previous one, only using another TTL counter. The circuit must be powered by 5 V.
Found in a 1967 publication by General Electric, this SCR circuit generates voltages of 120 VAC at...
We found this CMOS circuit in a publication from the 1980s. What this circuit does is to flash two LEDs...
The circuit shown, found in a 2004 documentation, allows the use of a telephone, without the...